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The problem

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The number of kilograms of water in a human body varies directly as the

mass of the body. A 96-kg person contains 64 kg of water. How many kilo

grams of water are in a 60-kg person

Answer provided by our tutors

Let 'x' represent the kilograms of water in a 60 kg person.


Since the number of kilograms of water in a human body varies directly as the mass of the body we have:


x/60 = 64/96 
.........
click here to see the solution for x
.........
x = 40 kg


There are 40 kg of water in a 60 kg person.

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